What’s going on with A&E waiting times?

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Last updated: 26 May 2022

Waiting times in accident and emergency (A&E) departments are a key measure of how the NHS is performing. Here, we look at who is using A&E services and why people have been waiting longer in A&E in recent years.

There are different types of A&E departments

There are three main types of A&E departments in England.

Type 1 departments are what most people might traditionally think of as an A&E service. They are major emergency departments that provide a consultant-led 24-hour service with full facilities for resuscitating patients, for example patients in cardiac arrest. Type 1 departments, which are operated by 124 NHS trusts, account for the majority of attendances.

Type 2 departments are consultant-led facilities but for specific conditions, for example, eye conditions or dental problems.

Type 3 departments treat minor injuries and illnesses, such as stomach aches, cuts and bruises, some fractures and lacerations, and infections or rashes. 

A&E departments

Being treated quickly in A&E is important for both for clinical outcomes and the experience of patients: delays in care for patients arriving in A&E have been associated with increased mortality and illness. 

The most high-profile measure of A&E performance in England is the four-hour standard. This refers to the pledge in the NHS

Constitution that at least 95 per cent of patients attending A&E should be admitted to hospital, transferred to another provider, or discharged within four hours.

A&E waiting times are often used as a barometer for overall performance of the NHS and social care system. This is because A&E waiting times are affected by activity and pressures in other services such as the ambulance service, primary care, community-based care and social care services. For example, patients cannot be admitted quickly from A&E to a hospital ward if hospitals are full due to delays in transferring patients to other NHS services or in arranging social care.

However, measuring the proportion of people seen within four hours does not provide a full picture of how A&Es are performing and we should be cautious about placing too much emphasis on the four-hour standard or any single measure of A&E performance. The 2020 national survey of patients who have used urgent and emergency care services also shows these services receive high satisfaction scores overall, although, for example, more can be done to improve communication with patients as they are discharged from A&E. 

What has happened to A&E waiting times in recent years?

A&E waiting times have worsened substantially in recent years, after a decade of funding settlements that failed to keep up with demand for services and growing staff shortages. The NHS has not met the four-hour standard at national level in any year since 2013/14, and the standard has been missed in every month since July 2015 (see Figure 1).

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The four-hour standard is measured across all types of A&E department, but performance is poorest in type 1 (major) A&Es and this is where the majority of breaches of the four-hour standard occur.

Why are patients waiting longer in A&E departments?

Patients are waiting longer in A&E departments due to a wide range of factors including rising demand for services and reduced capacity to meet this demand.

Rising A&E attendances

High volumes of A&E attendances can lead to over-crowding, rising pressure on A&E services and poorer experience for patients. Attendances were lower than usual during the pandemic due to the availability of services and public attitudes to using health care services (see Figure 3). But aside from the Covid-19 period, the overall trend shows the number of people going to A&E has risen substantially over time. In 2019/20 there were 25.0 million attendances at A&E, compared to 21.5 million attendances in 2011/12. 

Rising emergency admissions to hospital

However, the increased pressure on A&E departments is more closely associated with rising numbers of emergency admissions to hospital rather than the increase in A&E attendances. In recent years, as demand for hospital inpatient care increased, the capacity to meet this demand has come under increasing pressure due to an insufficient number of hospital beds and severe staff shortages (see our explainers on A&E waiting times, hospital beds and delayed discharges for more information).

Fewer hospital beds

Although medical advances have reduced the average length of time people spend in hospital and allow beds to be ‘turned around’ or made available again more quickly, rising emergency admissions are placing increasing pressure on available resources, including hospital beds. 

These pressures are demonstrated by high levels of bed occupancy in NHS hospitals, which are closely associated with longer waiting times in A&E. Particularly in the winter months, hospitals are routinely operating with bed-occupancy rates above 92 per cent – the level at which the Department of Health and Social Care suggests that hospitals will struggle to deal with emergency admissions.

One of the clearest indications of the link between A&E waiting times and hospital bed occupancy is the number of patients who experience ‘trolley waits’1  in A&E departments – ie, a long wait between a decision to admit the patient being made in A&E and the patient actually being admitted to a hospital bed. These waits have substantially increased in recent years. 

Pressures on other services and changing clinical practice

Delays in discharging patients who are medically fit to leave hospital (known as ‘delayed transfers of care’ or ‘stranded patients’) are another factor driving up bed-occupancy rates. This can mean both poorer experience for the patients waiting to be discharged and a lack of available beds for new patients requiring admission from A&E. These delays can arise from a lack of available capacity in social care and NHS settings outside of hospital – including intermediate care or ‘step-down’ facilities that help care for patients after they leave hospital. 

Recent analysis has also indicated that waiting times in A&E may be increasing due to advances in medical practice. For example, some patients who would previously have been admitted to hospital can now be fully treated in A&E with more investigations and treatments. Patients with simpler clinical needs who could be treated quickly in A&E may now also be increasingly treated out of hospital, for example, being treated by ambulance services at the scene of an injury. 

Staffing pressures

A&E departments face longstanding challenges in recruiting and retaining sufficient staff to cope with rising demand. The Royal College of Emergency Medicine notes that emergency medicine has a high attrition rate from doctors in training, high early retirement rates for experienced clinicians, and significant reliance on temporary locum clinical staff. In a recent General Medical Council survey, nearly three-quarters of emergency medicine trainees rated the intensity of their workload as heavy or very heavy, substantially more than any other specialty.

A range of national policies has been put in place over recent years to boost the numbers of clinical staff in A&E departments through increased recruitment and improved retention of existing staff. Between 2012 and 2019 the number of emergency medicine consultants increased by 7 per cent each year. Over this time, other professional roles, such as advanced clinical practitioners and physician associates, have also been developed to play a greater role in delivering A&E services to relieve pressures on departments.

However, it remains difficult to recruit and retain sufficient staff in emergency care and other key services. Shortages of nurses and medical staff are also reported in specialties such as acute general medicine. Staffing shortages in these key areas will reduce the ability of hospitals to admit patients quickly from A&E departments or to provide specialist advice to patients within A&E departments who could be treated and discharged, further increasing waiting times.

  • 1 The number of ‘trolley waits’ can be affected by variation in how different hospitals arrive at (and record the time of) the ‘decision to admit’. Because of this, NHS Digital has begun to produce data on the number of patients who spend a total of 12 hours or more in A&E.

A picture of activity at A&E departments

Age of patients

NHS Digital publishes detailed annual reports of activity at A&E departments in England. These reports show that the age-profile of patients attending A&E has remained relatively stable over the past decade, with people aged 65 and over accounting for a larger number of A&E attendances per head than adults and children.


People living in the most deprived areas in England had a far higher number and rate of attendances at A&E compared to other groups (see Figure 2). A&E attendances were twice as high for people in the most deprived areas as in the least deprived.

The first large-scale research into attitudes and perceptions towards emergency care from the 2018 British Social Attitudes Survey found people living in deprived areas are more likely to prefer A&E departments over their GP to get tests done quickly; find it more difficult to get an appointment with their GP; and think A&E doctors are more knowledgeable than GPs. Separate research from the British Red Cross has shown that people who frequently attend A&E account for a substantial share of ambulance and hospital activity and often face common factors including housing insecurity, homelessness and mental health issues.

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One of the defining characteristics of emergency medicine (and general practice) is its undifferentiated case-mix, ie, patients attend an A&E department without prior testing or categorisation of their medical condition and health needs. A new emergency care dataset has been launched to capture more detailed information on why people come to A&E and what treatment they receive. From early experimental data from this source, some of the more common reasons for attending A&E included abdominal pain, chest pain and limb injuries. 

Winter pressures and Covid-19


Winter is the one of the most challenging times for health and care services in general and A&E departments in particular.

Although the volume of A&E attendances is not substantially higher in winter, the demand for hospital admissions and more intensive medical care increases. Demands can rise due to increased prevalence of influenza-like illness, respiratory diseases associated with colder weather such as asthma and pneumonia, and infectious winter vomiting bugs like norovirus.

These pressures also affect NHS staff, further adding to pressures on services as staff sickness increases over winter. The supply of hospital beds can also be heavily affected by norovirus outbreaks, which can lead to entire wards being shut and deep-cleaned. This combination of increased demands and reduced capacity leads to patients waiting longer in A&E departments over the challenging winter months.

As staffing pressures and reductions in the number of hospital beds have become endemic to the NHS over recent years, long waiting times in A&E departments throughout the year are common.


During the Covid-19 pandemic NHS leaders encouraged the public to come forward if they needed NHS care. However, due to a range of factors including the availability of services, the impact of national restrictions and changing public views on accessing services, the number of A&E attendances fell sharply after the March 2020 national lockdown in England before returning to pre-pandemic levels in mid-2021 (see Figure 3). 

National data from a large sample of A&E departments suggests that the ‘missing’ attendances during Spring 2020 were not limited to minor conditions, with sharp falls in the number of patients going to A&E for heart conditions for example.

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Waiting times for A&E care continue to be challenged as hospitals respond to the immediate demands of Covid-19, tackle backlogs for planned hospital care, and cope with staffing shortages. In April 2022, waiting time performance in A&E departments was among the worst recorded in modern data collections. Only 72 per cent of people were seen within four hours in A&E (compared to the target of 95 per cent) and no NHS trust reported that it achieved the national standard.  


Pressures are rising on A&E departments and patients are waiting longer for the care they need as national performance targets are routinely missed. 

High levels of hospital bed occupancy, delays in transferring patients out of hospital, and staff shortages throughout the urgent and emergency care system have all had an impact on A&E waiting times over recent years. 

The four-hour A&E waiting time standard is one of the most high-profile indicators of how the NHS is performing. The sustained declines in performance against this waiting time standard place a significant toll on patients and staff alike and are a clear indication of the pressures the wider health and care system is under.

NHS waiting times: our position

Performance against key national waiting time standards has deteriorated in recent years, leaving many people waiting longer for care; there is little prospect of recovery in the foreseeable future.

Learn more


Umesh Prabhu

Medical Director,
Wrightington, Wigan and Leigh FT
Comment date
08 April 2014
I am very fortunate to have amazing AE staff and a fantastic CD. Got a brilliant CEO and the Board. But AE middle grade doctors shortage and Consultant shortage is killing us and our performance. When there is a shortage quality of doctors drops and cost increases. Neighbouring Trusts are trying to pouch our consultants with more pay!

It saddens me that many of Australian AE training posts are filled by UK graduates. It also saddens me that there are nearly 50% AE middle grades who are non-trainee posts. Traditionally these are filled by non-EU doctors from Indian and African countries. With the immigration changes these doctors have stopped coming to UK.

While we bust the myths let us also see what is the solution for acute shortage of AE doctors, why our trainees are happy to go to Australia but don't want to do their training in UK and let us learn lessons.

We owe it to our patients and also for our staff. If not quality will drop, cost will increase and both patients and staff will suffer.

Carol Morgan

Working with manufacturing company,
Comment date
08 April 2014
Good afternoon

I am very sad and also somewhat resentful that doctors are going to Australia.
I am visiting my daughter in Melbourne very soon having been their for three and a half months in 2011.
I was surprised to discover how much must be spent on admin in the Australian system.As a patient with Medicare I had to either pay the total amount and then claim a large percentage back via a Medicare office or fill in many forms or or if they bulk billed then I had to pay the percentage required at the surgery.
One young Australian said he would not take his children to A@E in Melbourne as there would be too much blood??
WE do not hear of the problems in otherrcountries. I have a relation in Vancouver and she had to wait for three days on a trolley in a corridor as they did not have a bed to admit her.
I intend doing some research whilst I am in Australia to find out just exactly how it works.

I wish you all the very best.PS I was admitted to hospital as an emergency ,spent four days there and received surgery eight weeks later. Excellent all round


Comment date
08 April 2014
In response to "myth 3", I remember reading this last year:


Russell B Hamilton

Experienced healthcare professional,
Comment date
09 April 2014
This is an excellent paper. It is good to see a thoughtful and well set out analysis of reality addressing the myths that continue to be promoted by people who to be frank are either ill informed or manipulating the facts for political gain.

Much of what is described in this paper is common sense when looking at the impact of policy decisions, investment, geographical pressures, training and recruitment issues and inescapable demographic changes and pressures.

My experience of working in primary, acute and ambulance services at a senior level and at a more remote strategic level tells me that the vast majority of all staff go to work and do a great job with what they have and that there are a great many who are innovative and creative.

The simple fact is that this as your paper highlights a complex area with an incredible number of variables.

It is important to be realistic and honest about what is not only affordable but what is achievable taking into account all the available resources.

Well done again. Keep up the great work - busting the myths and highlighting the issues.

Will Denby

Comment date
14 April 2014
As a trainee about to embark on a career in the NHS, I am excited. In the coming years we have a fantastic opportunity to make the NHS even better than it already is as a fully-comprehensive health service, free at the point of delivery. We should be bold, and make the NHS as good as it can be, for everyone - it might look very different in years to come.

The 'front door' issues make the headlines, but there are untold triumphs and issues lurking beneath that do not get the political and press coverage.

We have an opportunity as clinicians to work with all stakeholders at trust and strategic level to address these issues, with the patient at the centre of the whole scenario - the QIPP savings will follow!

I too enjoy reading the Kings Fund's measured take, on what can be at times a visceral discussion about the future of the NHS, inevitably tarnished with whatever political hue one would wish - a nessecary evil in a system borne by politicians.

Keith Hider

Healthcare manager,
Comment date
24 April 2014
"nearly 40 per cent of patients who attend A&E are discharged without requiring treatment." I continue to be astounded by this statistic and fail to understand the behaviour of people who have nothing wrong with them wasting their time sitting in a A&E waiting room. What does this statement actually mean - these people needed no treatment, no reassurance, nothing? Or does it mean they were discharged directly from A&E without the need for any follow-up treatment? Please explain.

James Thompson

Senior Research Analyst,
The King's Fund
Comment date
24 April 2014
Keith, thanks for the comment/question. This stat originates from the A&E Hospital Episode Statistics (HES) data and was part of the Health and Social care Information Centre (HSCIC) report: Focus on A&E.

We have taken the number used in the data sheet that accompanies the HSCIC report that says: 39% of patients were discharged with no follow-up required. So they could have consumed lots of activity before they were discharged, but with no further treatment required.

But the Focus on A&E report says that, for first A&E treatment, 34.4% of patients received guidance/advice only. So perhaps the true number of patients receiving no treatment is somewhere between the two.

I do think however that we need to be careful about how we class 'guidance only'. Though it is likely that this advice could be given in other healthcare settings, we shouldn't discount its value to patients who felt they needed to see a healthcare professional at short notice.

Diana Badcock

ED Director,
Australian Healthcare Group
Comment date
22 May 2014
UK citizens have reciprocal Medicare rights in Australia
We have private and public ED's however it is common for the more electronically advanced ED's to charge overseas visitors $400 for an attendance and the you would be eligible to get some of that back from Medicare and the rest from a private insurer ( if you have taken out that level of travel insurance before you travel). Those ED's not so well resourced would likely charge the Medicare rebate only. However Australain health care is based on user pays- we pay for scripts, always GP visits, unless you go you a bulk billing clinic. This is the way it works.
There is no NHS philosophy here for those who can pay and if you are fortunate enough to be able to afford to visit Oz -you pay.
If you have a life threatening illness all bets are off and any ED will ignore all of the above and care for you- even top private ED's would not chase the dollar - if you needed heart surgery after a heart attack they would get on with it and suck it up. This is not infrequent.
TAC - transport accident commission would cover all costs if you are injured on our roads
WC - work cover would cover all costs if you got injured at work
DvA - would cover all costs if ever you out your life on the line for fellow countryman
It's different to the UK but it's not a bad system.
Do not travel and expect fish and chips- unfair. We would grill the fish and have salad and you would feel healthier afterwards.
Enjoy Melbourne- my family have enjoyed my deflection to Oz 25 years ago and on their visits to Oz have needed to utilise the services occasionally and loved it -
Advice. IF YOU PICK UP A MEDICARE CARD FROM A MEDICARE OFFICE AS SOON AS YOU ARRIVE IN THE COUNTRY- to which you are entitled - IT IS LIKELY YOU WILL BE CHARGED NOTHING IF YOU ARE SICK ENOUGH TO NEED ED. You will need to pay a copayment at the GP as everyone does. Unless you go to a bulk billing clinic.
As to why the registrars are coming- look at the case mix and skill base they get here. The days of Oz coming to practice on the POHM's is over. POHm's come here because the training model for ACEM is different and the lifestyle and attitude is wonderful for anyone.
Don't moan that they come- find out what we offer and take it back to UK

Dr E Partington

Comment date
14 October 2014
It's not surprising that newly qualified A and E doctors go abroad- the working conditions here are dreadful. Rotas are very hard, long days , maybe 9 days in a row. It's difficult to choose your area to be near your family. Holidays have to booked a year in advance, with poor HR support. Colleagues tell me how despairing they become.....we have fantastic , enthusiastic graduates then we exhaust them; they deserve better.

Stephen Praibin

Healthcare workflow analyst,
NSW Health
Comment date
17 December 2014
Just reading with some skepticism the claim that lots of nurses and doctors from the UK are filling positions in Australia...
The reverse is true. A number of representatives from UK hospitals and government agencies have been recruiting here for UK roles. The money is better in the UK and the bureaucracy problem is less.
The issues we have are globally universal:

Trauma doctors and experienced nurses are in short supply.
Growth in aged care health is growing very quickly
Trolley block is being addressed to avoid ambos being stuck at emergency departments waiting for a A&E bed.

Whats new? Every country has these problems. Doctors and nurses in Australia are paid roughly the same as in the UK if you analyse the higher living costs in Australia and purchasing power.

Sydney Australia

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